SOLUTION: if we have this type of question x+2y<-25 so, how we are going to graph nad solve it

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Question 245535: if we have this type of question x+2y<-25 so, how we are going to graph nad solve it
Found 2 solutions by stanbon, edjones:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if we have this type of question x+2y<-25 so, how we are going to graph nad solve it
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You NEVER graph an ineqality directly. You graph the boundary of the
inequalit which is always an EQUALITY.
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Solve your INEQUALITY for "y":
y < (-1/2)x - 12.5
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Now, graph y = (-1/2)x-12.5 as a dashed line.
graph%28400%2C300%2C-40%2C40%2C-40%2C40%2C%28-1%2F2%29x-12.5%29
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Then, since you want y to be LESS THAN (-1/2)x-12.5,
shade the half-plane BELOW the dashed line.
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graph%28400%2C300%2C-40%2C40%2C-40%2C20%2Cy%3C%28-1%2F2%29x-12.5%29
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That half-plane is the graph of the INEQUALITY.
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Cheers,
Stan H.

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
x+2y<-25
2y<-(x+25)
y<-(x+25)/2
.
Ed
.
graph%28500%2C500%2C-20%2C2%2C-20%2C2%2Cy%3C-%28x%2B25%29%2F2%29